silver grain

The specimens are loaded for a defined period of time under creep condition with defined temperature,after which the craze densities are measured with an optical microscope.

实验采用显微镜对PMMA———有机玻璃的变截面试件在不同时间的蠕变条件下的银纹损伤进行实验后观测,将银纹所占的面积和所取图象视场占的总面积的比值视为银纹密度D,通过对银纹密度的测量得到银纹损伤随时间和应力的变化规律。

The existence and characters of crazes were proved and the compensating mechanism of crazes was put forward.

对双层结构变燃速发射药微观结构进行了研究,讨论了银纹的存在及其特征性,提出了银纹的作用机理。

In the view of that the craze is a manner of nonli\|near deformation of polymers, a series of experiments on the stress induced craze and craze damage in the crack tip of modified polypro\|pylene were made by using Moir technique.

本文考虑了改性聚丙烯 (PP)材料的线粘弹特性 ,基于银纹是聚合物材料的一种非线性变形方式 ,对改性PP材料裂尖应力银纹损伤进行实验研究。

The interfacial debonding, crazing and shear yielding are analysed when the interaction among the muIti-particle is taken into account.

定性地分析了产生界面脱粘、银纹及剪切屈服等损伤破坏形式的力学条件，并把计算结果与具体实验做了比较，取得了较好的一致性。

The entire procedures of the crazing induction-formation-destroy of the PVC/MBS mixtures under stretching stress were observed by SEM, and it was illustrated by the density determination and inmer structure of the crazing that the material had been left "empty ".

本文通过扫描电镜（ＳＥＭ）观察了ＰＶＣ／ＭＢＳ共混物银纹的发展和冲击断面形貌，并测定了银纹体的密度变化。

Transmission electron microscope(TEM) showed that SAN component promoted the crazing and PVC the shear yielding.

透射电子显微镜分析表明,当共混物中SAN含量较多时,可以观察到银纹的存在;当共混物中PVC含量较多时,可以观察到剪切屈服的发生;扫描电子显微镜分析表明,当共混物中PVC含量较多时,断裂表面出现了大量的空洞,并伴随着基体的塑性流动;小角X射线散射仪分析表明,当共混物中SAN的含量较多时,散射强度的增加是银纹的贡献能力增大的结果。

Study on Photosynthesis and Water Physiology of Cinnamomum septentrionale;

银木的光合与水分生理特性的研究

The leaf essential oil of Cinnamomum septentrionale collected from an artificial planting population in Chengdu city, Sichuan province were analyzed by capillary GC/MS.

毛细管气相色谱／质谱／计算机联用仪器分析结果表明，在四川省成都市一人工种植的银木（Ｃｉｎｎａｍｏｍｕｍｓｅｐｔｅｎｔｒｉｏｎａｌｅ）种群中，其枝叶精油主要化学组成在各植株间存在很大差异，发现精油存在１，８－桉叶油素，樟脑，异丁香酚甲醇和９－氧代橙花叔醇等四个化学类型。

The trees stood in an attitude of intentness, as if they waited longingly for a wind to come and rock them.

树木纹丝不动，仿佛热切地期望着有一阵风来摇动它们。

Cleaning exposed the grain of the wood.

清扫使树木的纹理暴露

To split or saw(wood) along the grain.

纵向锯木材沿纹理劈或锯（树木）

tall timber tree of New Zealand having white straight-grained wood.

新西兰一种高大的木材树种，白色木，木纹整齐。

handsomely striped or mottled wood of the zebrawood tree; used especially for cabinetwork.

带有美观的条纹和斑纹的斑木树木料，尤其用于细木工。

Cleaning exposed the grain of the wood.See Synonyms at show

清扫使树木的纹理暴露参见

(of wood) have a pattern from the grain of a tree burl.

（指木头）有树节的纹理和图案。

Like the markings on wood which are ingrained in the very heart of the tree,

就像木头的纹路发自于树木的中心深处，

hard yellow often variegated wood of an olive tree; used in cabinetwork.

橄榄树的木料，坚硬、黄色、常带斑纹，用于细木工。

The white, close - grained wood of one of these trees.

考里松木这种树的白色的纹理细密的木材

the fine-grained wood of a hazelnut tree (genus Corylus) and the hazel tree (Australian genus Pomaderris).

榛子树（榛属）和榛树（澳大利亚）的细纹木料。

the variegated or showily striped ornamental wood of various tulipwood trees.

各种有色条纹木材树的木材，有杂色或华丽的条纹，用于装饰。

The fine-grained wood of the orange tree, used in fine woodwork.

柑桔木材桔树的具有较好纹理的木材，用于精美的木制品

durable straight-grained wood of the lacewood tree; used for building and cabinetwork and tools.

耐用、直纹的枪木树木料，用于建筑和细木工及制工具。

The wood of any of these trees, especially the hard, close-grained wood of the sugar maple, often used for furniture and flooring.

槭树材这些树木的任一种木材，尤指坚硬、木纹细密的糖槭木材，通常用于做家具和地板

Central American tree yielding a valuable dark streaked rosewood.

中美洲的一种树，出产带有深色条纹的贵重红木。

An Asian tree(Diospyros kurzii)having mottled gray wood used in cabinetwork.

大理石木一种亚洲的乔木，（大理石木柿树属）木料有灰色斑纹，用于做精细木工家具

white close-grained wood of a tree of the genus Agathis especially Agathis australis.

贝壳杉属的树木（尤指新西兰贝壳杉）白色的纹理细密的木材。